The good thing is that Vatican I specifically condemned any such interpretations of definitions.
Sess. 3, ch. 4. 14. Hence, too,that meaning of the sacred dogmas is ever to be maintained which has once been declared by holy mother church, and there must never be any abandonment of this sense under the pretext or in the name of a more profound understanding.
I believe this is actually a great argument for Baptism of Desire. It does not say that a dogma must be understood as it was once declared. Perhaps that is also true, but that is not what it says.
It specifically says that the meaning/understanding (in other translations) which has once been declared by the church must be preserved.
That goes against the idea of laymen reading dogmatic definitions and assigning their own meaning to them.
Now, what is the church's understanding of the dogma in question? Surely the first place to go would be the Catechism of the Council of Trent, no? Or perhaps those approved church men who published commentaries on the Council in the centuries following it?
Most definitely the dogma's meaning which has once been declared by the church cannot first appear almost 500 years later by someone who was not tasked by the church with interpreting the council.